Veterinarian Amy Zalcman is an expert in figuring out the unusual things canines and cats consume. Showing us a series of 10 X-rays, we saw that dogs are often money hungry. One dog had swallowed a stack of coins.

"The penny when it gets digested can cause trouble with their red cells and the red cells get destroyed," she said.

CBS 2 HD was shown the X-ray of a Bull Terrier puppy who ate a kitchen knife and survived.

So did a cat that swallowed a needle, which was lodged at the back of the throat. The surgery to remove it took place before the needle traveled to the cat's brain.

Other X-rays revealed a tiny metal engine from a toy car, a pencil, earrings, a collection of rocks and more.

Making his CBS 2 HD debut was my own dog, "Lou." Lou likes rip the stuffing from his dog toys, which is a dangerous habit because the material he ingests could cause obstructions and they won't show up on X-rays.

That is also true of other things dogs like to eat, namely socks and underwear.

You may say "not MY pet," but remember they will never confess. The X-rays, however, never lie.